Netiquette (a portmanteau of "network etiquette" or "Internet etiquette") is a set of social conventions that facilitate interaction over networks, ranging from Usenet and mailing lists to blogs and forums. These rules were described in IETF RFC 1855.[1[[http://en.wikipedia.org/wiki/Netiquete#cite_note-0|]]] However, like many Internet phenomena, the concept and its application remain in a state of flux, and vary from community to community. The points most strongly emphasized about USENET netiquette often include using simple electronic signatures, and avoiding multiposting, cross-posting, off-topic posting, hijacking a discussion thread, and other techniques used to minimize the effort required to read a post or a thread. Netiquette guidelines posted by IBM for employees utilizing Second Life in an official capacity, however, focus on basic professionalism, amiable work environment, and protecting IBM's intellectual property.[2[[http://en.wikipedia.org/wiki/Netiquete#cite_note-1|]]] Similarly, some Usenet guidelines call for use of unabbreviated English[3[[http://en.wikipedia.org/wiki/Netiquete#cite_note-2|]]][4[[http://en.wikipedia.org/wiki/Netiquete#cite_note-3|]]] while users of online chat protocols like IRC and instant messaging protocols like SMS often encourage just the opposite, bolstering use of SMS language.